Recent research from Aurora Energy predicts that there will be 18GW of unsubsidised renewable energy in northwest Europe by 2030. That’s more than five Hinkley Point Cs. But to make this forecast a reality, maximising the return of aging solar farms has to be prioritised.

In solar’s early years, profitability was typically achieved by simply looking at outgoings, such as the costs of construction, and driving them down.